#5552. Border Subgrid Count I
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Border Subgrid Count I
Border Subgrid Count I
You are given a grid of letters. Your task is to calculate, for each letter, the number of square subgrids whose border consists of that letter.
Input
The first line has two integers n and k: the size of the grid and the number of letters. The letters are the first k uppercase letters. After this, there are n lines that describe the grid. Each line has n letters.
Output
Print k lines: for each letter, the number of subgrids.
Constraints
Example
Input
5 3
ABBBC
ABABC
ABBBC
ABBBC
CCCCC
Output
5
14
9